Reaction catalyzed by thiamine pyridinylase (2.5.1.2)

		+			=			+
	2-(1-hydroxyethyl)thiamine	+		aniline	=		4-methyl-2-(1-hydroxyethyl)-5-(2-hydroxyethyl)-thiazole	+		5-(anilinomethyl)-2-methylpyrimidin-4-amine